Optimistic!
Golf Monthly, in an article purporting to show that present-day cars are infinitely better than their pre-war predecessors, quotes acceleration up to the eighty mark in a Vauxhall Velox “in about 15 seconds.” The car, in fact, has a maximum speed of only just above 80 m.p.h. and the last test report we saw gave 0-70 m.p.h. in 30.6 sec.